Intense ultrashort light pulses comprising merely a few wave cycles became routinely
available by the turn of the millennium. The technologies underlying their production and …

Time-dependent density-functional theory (TDDFT) describes the quantum dynamics of
interacting electronic many-body systems formally exactly and in a practical and efficient …

We propose an empirical formula for the static field ionization rates of atoms and molecules
by extending the well-known analytical tunnelling ionization rates to the barrier-suppression …

We experimentally measure the ionization probability as a function of alignment angle of
three molecules in intense laser fields: nitrogen, oxygen, and carbon dioxide. Unlike atoms …

Intense-field many-body S-matrix theory (IMST) provides a systematic ab initio approach to
investigate the dynamics of atoms and molecules interacting with intense laser radiation. We …

Time-dependent density-functional theory (TDDFT) extends the basic ideas of ground-state
density-functional theory (DFT) to the treatment of excitations and of more general time …

We present an implementation of the time-dependent configuration-interaction singles
(TDCIS) method for treating atomic strong-field processes. In order to absorb the …

We report on a real-time imaging of the ultrafast D 2<? format?>+ rovibrational nuclear wave-
packet motion performed using a combination of a pump-probe setup with 7 fs laser pulses …

The direct observation of molecular dynamics initiated by x-rays has been hindered to date
by the lack of bright femtosecond sources of short-wavelength light. We used soft x-ray …

We present a theory of ionization of diatomic molecules by a strong laser field. A diatomic
molecule is considered as a three-particle system, which consists of two heavy atomic (ionic) …